EP1209396A1 - Position indicator for submerged valve - Google Patents

Position indicator for submerged valve Download PDF

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Publication number
EP1209396A1
EP1209396A1 EP00948031A EP00948031A EP1209396A1 EP 1209396 A1 EP1209396 A1 EP 1209396A1 EP 00948031 A EP00948031 A EP 00948031A EP 00948031 A EP00948031 A EP 00948031A EP 1209396 A1 EP1209396 A1 EP 1209396A1
Authority
EP
European Patent Office
Prior art keywords
valve
hydraulic
signal
shaft
cartridges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00948031A
Other languages
German (de)
English (en)
French (fr)
Inventor
José Luis SANUDO TOFINO
Gerardo Bonnin Barcelo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Servinge SL
Original Assignee
Servinge SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Servinge SL filed Critical Servinge SL
Publication of EP1209396A1 publication Critical patent/EP1209396A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0066—Hydraulic or pneumatic means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/598—With repair, tapping, assembly, or disassembly means
    • Y10T137/6031—Assembling or disassembling rotary valve
    • Y10T137/6035—Rotary ball valve

Definitions

  • This invention refers to a position indicator for submerged valves, intended to provide as a result totally accurate and reliable remote signalling of the position of a valve submerged in the fluid (liquid or gas) in a tank or in any other volume of fluid, thereby guaranteeing the non-existence of erroneous signals, something that frequently occurs in the systems or devices that are currently used.
  • the indicator in question has been conceived for being applied preferably and fundamentally in hydraulic systems for the transfer of fluids so that the position of submerged valves can be known with reliability in the tanks of ships, thus permitting the correct functioning at all times of the hydraulic systems and preventing any incidents and/or accidents from occurring. Its application can be made to extend to any other practical situation in which their use is required, i.e., in all those cases in which it is necessary to know with reliability the position of a valve submerged in a fluid (liquid or gas).
  • the indicator of the invention is based on the fact that the signal by which the position reading of the submerged valve is obtained is transmitted by hydraulic pressure, with the particular feature that the unit formed from the indicator and components associated with it present certain structural and functional characteristics permitting the drawbacks referred to above to be solved, providing as a result a totally reliable signal, in other words, the position reading of the valve that it is sought to control is correct.
  • the indicator itself consists of an actuator shaft by means of which the corresponding valve is opened and/or closed, this shaft being able to be rotary or have linear displacement, and is operated by any suitable conventional system.
  • this shaft includes mechanical means capable of acting on one or more hydraulic cartridges in which regulation of the pressure takes place which in turn acts to regulate the pressure of a secondary hydraulic system, producing a pressure signal that is transmitted to a converter which transforms the signal into any kind of visible reading on a display screen, all this in such a way that the reading will correspond to the specific correct position of the valve.
  • the mechanical means that acts on the hydraulic cartridges consists of cams secured to the actuating shaft, in such a way that as the-shaft rotates the cams impinge on the hydraulic cartridge or cartridges in order to transmit the corresponding pressure signal to the position indicator of the valve.
  • the actuator shaft is linearly displaceable and the mechanical means for acting on the hydraulic cartridges consist of longitudinal projections fixed to that actuator, in such a way that these projections gradually increase in their width so that the displacement in one direction or the other of the shaft itself leads to actuation in one way or the other on said hydraulic cartridges.
  • These projections will preferably and advantageously be produced on a conical surface.
  • the indicator is also indirectly related to a main hydraulic unit and a control and command unit with the latter being connected to the actuator itself.
  • the main hydraulic unit is intended to provide the hydraulic system with power and operation involved in the functioning of the valve via the actuator.
  • the block for the position indicator is represented by 1, while 2 is the valve or cut-off valve and 3 the hydraulic actuator.
  • block 4 corresponding to the main hydraulic unit
  • block 5 corresponding to the control and command unit
  • block 6 corresponding to the secondary hydraulic unit, all of them being connected as represented in said figure in such a way that the output from block 1 corresponding to the position indicator is a pressure signal which is made to pass via a converter, block 7, so that it can be converted into an analog or digital signal.
  • This signal is then shown on a display screen represented by block 8 in this figure 1.
  • FIG. 2 is a schematic representation of a specific embodiment of the position indicator, in which the position of the valve or cut-off valve 2 is determined by the position of the actuator shaft 3', which is of course linked to the hydraulic actuator 3 referred to in figure 1.
  • This shaft 3' is rotary and passes through block 1 corresponding to the position indicator, being hermetically sealed by means of corresponding joints 9.
  • Inside block 1 there is a recess or cavity 10 in which a pair of cams 11 have been provided integral with the shaft 3'.
  • Said cams act on one or two hydraulic cartridges 12 whose design and functioning characteristics are very well known, in such a way that by means of these cartridges 12 the pressure of a secondary hydraulic system is regulated in order to produce a pressure signal which is transformed or converted in block 7 of figure 1.
  • said conversion can be to any kind of digital or analog reading so that it can be shown on the display screen of block 8, figure 1.
  • reference 13 corresponds to a force or coupling flange which takes part in the closing/opening of the valve or cut-off valve 2, and it also includes the support 14 for the entire assembly, plus the corresponding hydraulic connections 15.
  • Figure 3 shows a variant of the design in which the actuator shaft 3" works by linear displacement and its action on the corresponding hydraulic cartridges 12 is done by means of projections 16 in the longitudinal direction, which progressively increase in width from one end to the other.
  • the aim of this is that displacement in one direction or the other mean that the hydraulic cartridges 12 are actuated upon in either direction in order to produce the corresponding pressure signal, in the same way as was stated above.
  • These projections 16 can be created in the form of a conical surface, which will be more advantageous and practical, since it also makes it possible for the actuator shaft 3" to rotate.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
EP00948031A 1999-07-29 2000-07-27 Position indicator for submerged valve Withdrawn EP1209396A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES9901716 1999-07-29
ES009901716A ES2178523B1 (es) 1999-07-29 1999-07-29 Indicador de posicion de valvulas sumergidas.
PCT/ES2000/000281 WO2001009540A1 (es) 1999-07-29 2000-07-27 Indicador de posicion de valvulas sumergidas

Publications (1)

Publication Number Publication Date
EP1209396A1 true EP1209396A1 (en) 2002-05-29

Family

ID=8309423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00948031A Withdrawn EP1209396A1 (en) 1999-07-29 2000-07-27 Position indicator for submerged valve

Country Status (7)

Country Link
US (1) US6822577B2 (https=)
EP (1) EP1209396A1 (https=)
JP (1) JP2003506642A (https=)
KR (1) KR20020029372A (https=)
ES (1) ES2178523B1 (https=)
NO (1) NO20020428L (https=)
WO (1) WO2001009540A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101383068B1 (ko) * 2013-08-20 2014-04-18 진종근 다회전구동기를 위한 원격위치검출장치
US9482247B2 (en) 2013-12-13 2016-11-01 Curtiss-Wright Flow Control Corporation Apparatus and methods for determining a position of a piston in a cavity
US20220339478A1 (en) * 2021-04-25 2022-10-27 Victor D. Trotter Aerial Firefighting Systems and Methods With Positive Displacement Liquid Sensing to Control Valve Position
US12607278B2 (en) * 2023-11-29 2026-04-21 Dresser, Llc Using pressure to monitor position of components on a control valve

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826165A (en) * 1955-10-31 1958-03-11 Infilco Inc Position indicator
DE1115090B (de) * 1960-05-19 1961-10-12 Klein Schanzlin & Becker Ag Stellungsanzeiger fuer ferngesteuerte Absperrventile u. dgl.
US3658087A (en) * 1971-02-08 1972-04-25 Acf Ind Inc Valve with integral closure and seat carrier unit
US3921665A (en) * 1974-12-17 1975-11-25 Us Army Limit valve with overtravel detector
US4191248A (en) * 1978-01-03 1980-03-04 Huebsch Donald L Tandem solenoid-controlled safety cut-off valve for a fluid well
NO159553C (no) * 1986-03-12 1989-01-11 Norske Stats Oljeselskap Kuleventil.
AU601412B2 (en) * 1986-04-02 1990-09-13 Daniel Jean Valere Denis Chauvier Valve
US5109692A (en) * 1988-08-25 1992-05-05 Fisher Controls International Inc. Diagnostic apparatus and method for fluid control valves
US5722286A (en) * 1995-01-19 1998-03-03 T & R Solutions, Inc. Torque/position transducer
IL114155A (en) * 1995-06-15 1998-07-15 Arad Ltd Fire service compound meter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0109540A1 *

Also Published As

Publication number Publication date
ES2178523B1 (es) 2004-09-01
NO20020428L (no) 2002-03-25
ES2178523A1 (es) 2002-12-16
JP2003506642A (ja) 2003-02-18
US6822577B2 (en) 2004-11-23
US20020092863A1 (en) 2002-07-18
WO2001009540A1 (es) 2001-02-08
NO20020428D0 (no) 2002-01-28
KR20020029372A (ko) 2002-04-18

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